Heating-stove



(N0 Model.)

C. BARNHART. HEATING STOVB.

No. 598,840. Patented Feb. 8, 1898.

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CORNELIUS BARNHART, OF WALKER VALLEY, NEW YORK.

HEATING-STOVE.

SPECIFICATION forming part of Letters Patent No. 598,840, dated FebruaryA8, 1898. Application filled lJ'une 4, 1897. Serial No. 639,370. (Nomodel.)

To all whom, t may concern:

Be it known that I, CORNELIUS BARNHART, of Walker Valley, in the countyof Ulster and State of New York, have invented a new and ImprovedHeating-Stove, of which the following is a full, clear, and exactdescription.

This invention relates to a class ofstoves employed for the generationand diffusion of heat in the rooms of residences, and has for its objectto provide novel features of construction for a stove of the indicatedcharacter which will afford an increased diffusion of heat therefrom byprovision of increased radiating-surface, whereby economy of fuel andgreater efficiency of service are attained.

The invention consists in `the novel construction and combination ofparts, as hereinafter described,and defined in the appended claims. i

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a front elevation of the improvedheating-stove. Fig. 2 is aside elevation of the same. Fig. 3 is a vertical sectional viewsubstantially on the lines 3 3 in Figs. 2 and 6. Fig. 4 is a sectionalplan view essentially on the lines l l in Figs. 2 and 3. Fig. 5 is asectional plan view on thelines 5 5 in Figs. 2 and 3. Fig. 6 is asectional plan view on the line 6 6 in Fig. 3, and Fig. 7 is a sectionalplan View on the line 7 7 in Fig. 3.

In the drawings representing an embodiment of my invention a base-plate10 is provided having feet 11, whereon the stove may be supported in anupright position. On the base-plate 10 the wall 12 of the ash-pit A isseated and may be secured by any preferred means. Usually the weight ofsuperimposed parts of the structure may be utilized for the indicatedpurpose.

The top plate 13 of the ash-pit Aseats upon the wall 12, beingpreferably flanged at the edge to produce a depending rib, whichencompasses the upper edge of the wall 12, so as to prevent lateraldisplacement, 'as clearly shown in Fig. 3. A draft-controlling registerof ordinary form is placed in the ash-pit door 12".

The improved stove is preferably furnished with three fire-pots 14 incylindrical form,

and these nre-pots may advantageously be spaced and arranged as shown inFigs. 5, 6, and 7, two of said cylinders being disposed in the sametransverse plane at the front and one cylinder at the rear of the frontcylinders and equally spaced therefrom. Any suitable style of grates 14amay be provided for the fire-pots 14, and these grates are held in thebottoms of the fire-pots for the support of fuel over aperturesin thetop plate 13, asindicated in Fig. 2. On the upper portions of thefire-pots 14 a diaphragm 15 is sustained, and said diaphragm 15 servesto support the annular wall 16, wherein apertures `are formed above thefire-pots, said apertures being normally closed by doors 17. Between thedoors 17 other orifices are formed in the wall16, and said orices may beprotected by mica sheets that afford a view of the fire burning in thefire-pots 14.

Within the annular wall 16, which forms an inclosure for what maybetermed the combustion-chamber B of the stove, a spider-frame is seatedupon the diaphragm 15. The spiderframe consists of three spaced uprightwalls c, integral with an arched crown-plate b and radially disposed onsaid plate, each of said walls being curved so as to produce an obtuseangular surface on the inner side, and the walls and crown-platetogether afford three chutes that incline downwardly from the apex ofthe crown-plate. Each chute lies opposite the open top of one of thefire-pots 14, so that material falling on the apex of the crownplate bwill be conducted down the three chutes into the respective fire-pots,this construction of parts being represented in Figs. 3, 5, and 6.

The outer edges of the upright walls a of the spider-frame slopeupwardly and inwardly, and upon said outer edges theconcentricallyapertured cap -piece 19 of the combustionchamber B islocated, which cap-piece is also seated upon the upper edge of theannular wall 16, which wall may be embedded in a groove formed in thelower side of the cap-piece, near its outer edge. An upright tubularconduit or magazine 2O is seated over the outer edges of the wing-wallsa, above the cap-piece 19, said magazine having its lower end portionflared sufficiently to adapt it for engagement with the wing-walls, asis clearly shown in IOO Figs. 3 and 5, the fire-pots and spider-framebeing represented by dotted lines in Fig. 5.

A series of upright heat conduits or iiues 21 have their lower endsintroduced within the cap-piece 19, the fines being concentricallydisposed with regard to the central magazine 20. The upper ends of theiues 21 are secured in a circular spaced row of orifices formed toreceive them in the flue-sheet 22, through which the fuel-magazine 20upwardly projects.

A hot-air chamber C is formed above the flue-sheet 22 by providing anannular wall 23, that seats on said iiue sheet, the hot air chamberbeing completed by the dished top plate 24, having a depending flangenear its periphery, which encircles the upper edge of the wall 23. Theupper extremity of the magazine 20 projects into a central orifice inthe top plate 24, and the open upper end of the magazine is normallyclosed gas-tight by the depending end of a water urn 25 or otherequivalent means.

The flue-sheet 22 and other parts located between said sheet and thediaphragm-plate 15 are held securely bound together by the clamping-bolt26, that passes down through the magazine 20. The bolt 26 penetrates across-bar 27, transversely disposed in opposite perforations in the wallof the magazine and having its extremities rested upon the line-sheet22. The lower end of the bolt 26 projects down through a centralperforation in the diaphragm-plate 15, and both ends of the bolt mayhave threaded engagement with nuts, whereby the diaphragm-plate andfluesheet may be drawn toward each other and the intermediate parts beclamped so as to render the structure substantial.

One of the series of flues 21 is somewhat enlarged diametrically, asshown at 21 in Figs. 2, 4, and 5, to adapt it for service as adirect-draft flue, and this Hue, which is preferably positioned at therear of the stove, has a lateral outlet, over which a thimble or branchdraft-pipe 21b is secured, whereon a pipe extension may be placed toconduct away waste products of combustion into a chimney or other placeof discharge.

Between the branch pipe 21b and cap-piece 19 a damper-gate 28 isintroduced Within the direct-draft flue 21, and this gate .is hung upona pintle-bolt projecting exteriorly of the pipe and provided with theusual thumbpiece to adapt it for control of the dampergate in the usualway. The gate or damper 28, if open or in the position shown in Fig. 2,permits the escape of smoke and other products of combustion from thefuel burning in one or more of the fire-pots 14 out of the branch pipe2lb and thence to the chimney, this provision being advantageous whenIire is iirst started in the stove.

It is to be understood that coke or coal of suitable kind is usedas theregular fuel for combustion in either or all of the fire-pots 14. Animportant advantage is afforded by the provision of the plurality offire chambers or pots 14 and the series of upright heat-radiating tlues2l.

It will be apparent that if but a small amount of heat is required towarma room fire may be placed in but one of the fire-pots 14, and theheat evolved therefrom will traverse all the iiues 21 and enter thehot-air chamber C, the side walls of which, as well as the flue 21,radiate heat, from which flue the products of combustion pass into thebranch pipe 21, the closure of the damper 28 being previously eifectedto cause all the products of combustion to traverse the flues 21 beforeescaping from the stove. Vhen occasion requires, two fire-pots may haveiire placed in them, or the maximum heating capacity of the stove may beutilized by the introduction and maintenance of fuel combustion in allthree of the fire-pots 14.

It will be seen that from the relative construction and arrangement ofparts a considerable supply of fuel, such as coal or coke, may be placedin the magazine 2O and will be automatically fed by gravity to either orall of the fire-pots 14.

It is manifest that the exposure of the cylindrical iire-pots 14 addstheir exterior radiating-surface to that of the combustionchamber B, theflues 21, and the hot-air chamber C, so that a large percentage of theheat evolved in the combustion of the fuel is radiated from'the stovefor warming the room or house.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A 1. z-A heating-stove, comprising an ash-pit, aplurality of fire-pots supported from the top of said ash-pit, acombustion-chamber into which the tops of the fire-pots open, afeeding-magazine adapted to convey fuel to all the fire-potsautomatically, heat-radiating iiues leading from the combustion-chamberinto a hot-air chamber,and a draft-flue leading from the hot-air chamberto a point ofy discharge, substantially as described.

2. A heating-stove, comprising a supported ash-pit, cylindricalfire-pots mounted on the top of the ash-pit over apertures therein, adiaphragm-plate seated on the fire-pots, the latter passing throughapertures in said plate, a spider-frame having feed-chutes adapted toconvey fuel to all the fire-pots, an upright fuel-magazine seated on thewings of the spider-frame to convey fuel through the chutes of the saidframe, a series of heat-radiating flues around the magazine, acombustion-chamber surrounding the spider-frame and intersected by theiiues, a hot-air chamber engaged by the upper ends of the iiues, and adirect-draft flue leading from the hotair chamber, substantially asdescribed.

3. A heating-stove, comprising an ash-pit, a plurality of cylindricalhre-pots mounted on the ash-pit, a combustion-chamber having the bottomwall thereof intersected by the IOO IIO

ber, a damper in the draft-flue below alateral 1o outlet therein, andmeans for sealing the upper end of the fuel-magazine, substantially asdescribed.

CORNELIUS BARNI-IART.

Witnesses:

SAYER FANGHER, V. T. WRIGHT.

